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Dear SIG members
A 'Global policy proposal for the allocation of IPv4 blocks to Regional Internet Registries' has been sent to the Policy SIG for review. It will be presented at the Policy SIG at APNIC 27 in Manila, Philippines, 23-27 February 2009. The proposal's history can be found at:
We invite you to review and comment on the proposal on the mailing list before the meeting.
The comment period on the mailing list before an APNIC meeting is an important part of the policy development process. We encourage you to express your views on the proposal:
- Do you support or oppose this proposal? - Is there anything in the proposal that is not clear? - What changes could be made to this proposal to make it more effective?
randy and jian
prop-069-v001: Global policy proposal for the allocation of IPv4 blocks to Regional Internet Registries ________________________________________________________________________
Authors: Adiel A. Akplogan, AfriNIC Raul Echeberria, LACNIC Maemura Akinori, APNIC Geoff Huston, APNIC Axel Pawlik, RIPE NCC Ray Plzak, ARIN Oscar A. Robles-Garay, LACNIC Nigel Titley, RIPE NCC Paul Wilson, APNIC
Note: This proposal was developed by a team consisting of persons from each of the 5 RIRs
Date: 22 January 2009
1. Introduction ----------------
This document is a global policy proposal governing the allocation of IPv4 address space from the IANA to the Regional Internet Registries (RIRs).
This document does not stipulate performance requirements in the provision of services by the IANA to an RIR in accordance with this proposed policy. Such requirements should be specified by appropriate agreements among the RIRs and ICANN.
2. Summary of current problem ------------------------------
With the depletion of the IANA free pool of IPv4 address space, the current policy regarding the allocation of IPv4 address space to the RIRs will become moot. The RIRs may, according to their individual policies and procedures, recover IPv4 address space. This policy provides a mechanism for the RIRs to retro allocate the recovered IPv4 address space to the IANA and provides the IANA the policy by which it can allocate it back to the RIRs on a needs basis. This policy creates a new global pool of IPv4 address space that can be allocated where it is needed on a global basis without a transfer of address space between the RIRs.
3. Situation in other RIRs ----------------------------
This proposal is being submitted in all RIR regions, with a view to becoming a global policy .
4. Details of the proposal ----------------------------
This policy is to be implemented in two phases:
- Phase I: Recovery of IPv4 address space - Phase II: Allocation of recovered IPv4 address space by the IANA
4.1 Phase I: Recovery of IPv4 address space
Upon ratification of this policy by the ICANN Board of Directors the IANA shall establish a mechanism to receive IPv4 address space which is returned to it by the RIRs, and hold that address space in a 'recovered IPv4 pool'.
Each RIR through their respective chosen policies and strategies may recover IPv4 address space which is under their administration. Each RIR shall at quarterly intervals return any such recovered address space to the IANA in aggregated blocks of /24 or larger, for inclusion in the recovered IPv4 pool.
During Phase I, no allocations will be made from the recovered IPv4 pool.
4.2 Phase II: Allocation of recovered IPv4 address space by the IANA
Upon ratification of this policy by the ICANN Board of Directors and a declaration by the IANA that its existing free pool of unallocated IPv4 addresses space is depleted; Global Addressing Policy ASO-001-2 (adopted by ICANN Board 8 April 2005)  is rescinded. IANA will then commence to allocate the IPv4 address space from the recovered IPv4 pool.
4.2.1 Allocation of IPv4 address space
a. For the purposes of this policy, an 'IPv4 allocation period' is defined as a 6-month period following 1 March or 1 September in each year.
b. At the beginning of each IPv4 allocation period, the IANA will determine the 'IPv4 allocation unit' for that period, as 1/10 of its IPv4 address pool, rounded down to the next CIDR (power-of-2) boundary.
c. In each allocation period, each RIR may issue one IPv4 request to the IANA. Providing that the RIR satisfies the allocation criteria described section 4.2.2, the IANA will allocate a single allocation unit, composed of the smallest possible number of blocks available in its IPv4 address pool.
4.2.2 IPv4 address space allocation criteria
A RIR is eligible to receive additional IPv4 address space from the IANA when the total of its IPv4 address holdings is less than 50% of the current IPv4 allocation unit, and providing that it has not already received an IPv4 allocation from the IANA during the current IPv4 allocation period.
4.2.3 Initial allocation of IPv4 address space
Each new RIR shall, at the moment of recognition, be allocated one (1) allocation unit by the IANA. If an allocation unit is not available, then the IANA will issue this block as soon as one is available. This allocation will be made regardless of the newly formed RIR's projected utilization figures and shall be independent of the IPv4 address space that may have been transferred to the new RIR by the already existing RIRs as part of the formal transition process.
a. All returned space is to be recorded in an IANA-published log of IPv4 address space transactions, with each log entry detailing the returned address block, the date of the return, and the returning RIR.
b. All allocated space is also to be recorded in this IANA- published log of IPv4 address space transactions, with each log entry detailing the address blocks, the date of the allocation and the recipient RIR.
c. The IANA will maintain a public registry of the current disposition of all IPv4 address space, detailing all reservations and current allocations and current IANA-held address space that is unallocated.
d. The IANA may make public announcements of IPv4 address block transactions that occur under this policy. The IANA will make appropriate modifications to the "Internet Protocol V4 Address Space" page of the IANA website  and may make announcements to its own appropriate announcement lists. The IANA announcements will be limited to which address ranges, the time of allocation and to which Registry they have been allocated.
4.4 Timetable for implementation
This policy is to be implemented immediately upon ratification by the ICANN Board of Directors according to the global policy process described in the ASO MoU .
5. Advantages and disadvantages of the proposal -------------------------------------------------
- The policy provides a mechanism for the ongoing distribution of IPv4 address space.
- None identified.
6. Effect on APNIC members ----------------------------
This policy governs the allocation relationship between IANA and the RIRs and does not imply any change to allocation relationships between APNIC and its members.
7. Effect on NIRs -------------------
This policy governs the allocation relationship between IANA and the RIRs and does not imply any change to allocation relationships between APNIC and NIRs.
8. References -------------
 Section 5, ICANN Address Supporting Organization (ASO) MoU http://aso.icann.org/docs/aso-mou2004.html
 Global Addressing Policy ASO-001-2 http://aso.icann.org/docs/aso-001-2.pdf
 Internet Protocol v4 Address Space http://www.iana.org/assignments/ipv4-address-space
 Attachment A: Global Policy Development Process, ASO MoU http://aso.icann.org/docs/aso-mou2004.html
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